Reenforced composite building block



U. E. TUUMIA HEENFORIJFD COMPDSiTE BULDlNG BLUCK. APPLICATION my.) APR. 10. 1922v PatentedSept. 5, 1922.

Patented Sept. 5, 1922.

UNITED STATES UNO E. TUOMI, 0F DALLAS, TEXAS.

REENFORCECD COMPOSITE BUILDING BLOCK.

Application filed April 10, 1922.

To all whomit may concern.

Be it known that I, UNo E. TUoMI, a citizen of Finland, residing at Dallas, in the county of Dallas and State of Texas, have invented certain new and useful Improvements in Reenforced. Composite Building Blocks. of which the following is a specification.

This invention relates to new and useful improvements in reenforced composite buildin" blocks.

he object of the invention is to provide a reenforced building block of the hollow type in which an air space is provided between the parallel slabs and the latter are secured in fixed relation by metallic bonding means.

A particular object of the invention is to provide. metallic bonding means adapted to be embedded in the slabs and which are also utilized in reenforcing the block longitudinally.

Another aim is to provide a block which is very simple in construction. but. is substantial and durable and adapted to endure heavy strains, and which is less expensive to produce than other blocks of the hollow type now in. use.

In carrying out the invention I provide two substantially parallel plastic slabs which are spaced apart and secured in fixed relation by a pair of inter-locking or inter-enaging bonding elements embedded therein. Ilach of said elements is bent upon itself to form a loop and a pair of intersecting bonding arms with elongated right. angle extensions. The elements are disposed in inverted relation and the extensions of the one engage within the loop of the other, said extensions reinforcing the block longitudinally while the said loops serve as keepers for the ext-ensionsand prevent spreading thereof.

A construction designed to carry out the invention will be hereinafter described together with other features of the invention.

The invention will be more readily understood from a reading of the following specification and by reference to the accompanying drawings, in which an example of the invention is shown and wherein:

Fig. 1 is a perspective view of the bonding elements assembled,

Fig. 2 is a. similar view of one of the elements separately,

Serial No. 551,019.

a block embodying the invention. These slabs are substantially rectangular and parallel. and it is to be understood that the same may he molded of any suitable plastic material and to form any desirable design. The said slabs are connected so as to provide an intermediate air space by means of a pair of metallic bonding elements which may be formed of wire or other like material.

Each bonding element is bent upon itself to form a loop ill and a pair of intersecting bonding arms 11. which are disposed at substantially 45 degree angles. The arms 11 of each element have a pair of elongated right angle extensions 12 which constitute reinforcing rods. The said elements are assembled or interlocked by arranging the same in inverted relation. whereby the ends of the extensions 12 of each are adapted to engage within the loop 10 of the other.

The bonding elements are adapted to be embedded in the slabs by placing the same in interlocked position in the mold forming saidslabs and pouring the plastic material therein in the usual manner. as is obvious.

As will be best seen in Figs. 4 and 5. when the block has been formed a pair of bonding arms ll are located slightly inwardly of each end. The corresponding angular portions of the loops 10 together with the ends of the arms 11. are embedded in the slabs; the arms of each pair intersecting and being disposed at 45 degree angles. By the in verted relation of said elements a loop 10 is embedded in the upper portion at one end of the block. while at the opposite end of the block the loop is located in the lower portion. It will be seen that by the angular arrangement of the arms 11. the same form substantial braces and secure the slabs in fixed relation.

The elongated extensions '12 are embedded in the upper and lower portions of the said slabs throughout their length. whereby the same are reentoreedlongitudinally. It is pointed out that the ends of the said extensions are passed through the loops it) which have the function of keepers, thereby locking the bonding elements together and preventing the extensions or reinforcing rods from spreading.

It will be seen that a building block constructed in accordance with the invention is well reinforced and bonded and is substantial and durable. The block is highly desirable because of its simple and inexpensive construction. It is pointed out that the bonding elements may be formed of wire, and by virtue. of their dual function. the use of separate reinforcing means is obviated.

In Fig. 6, l have illustrated a corner block with a closed or solid end, such blocks to be used at the end of a wall to form a corner. as is shown in Fig. 7. To construct a corner it will be seen that the end blocks of intersecting walls may be laid at right angles so that their outer portions overlap. As the blocks are twice as long as their width, it will be seen in Fig. 7, that by such construction the joints will be properly broken. It is to he understood, however, that Fig. (3, and 7, merely show one form of corner block that may be used and the invention is in no way limited to such a block with a closed or solid end.

Various changes in the size and shape of the difi erent parts as well as modifications parallel slabs spaced apart, and bonding elements embedded in and connecting said slabs, each of said elements being bent upon itself to form a loop and a pair of intersecting bonding arms terminating in elongated substantially right angle extensions, the extensions of each element being disposed longitudinally within the slabs and received by the loop of the other element.

2. A bonding connection adapted to be embedded in and connect separated slabs of a building block, said connection including pairs of intersecting bonding arms terminat ing 1n elongated extensions adapted to be disposed within and reinforce the said slabs longitudinally.

3. A bonding connection adapted to be embedded in and connect separated slabs of a building block, said connection including two corresponding elements each bent upon itself to form a loop and a pair of intersecting bonding arms terminating in elongated extensions, the extensions of each element adapted to be embedded in and reinforce the said slabs longitudinally and to engage in the loop of the other element, whereby the elements are interlocked and the said extensions are prevented from spreading.

In testimony whereof I altix my si nature.

UNO E. T OMI. 

